Any hero's you found that are good to learn with? I have tried a few suggestions like the Drow Ranger and the Lich.. but so far Axe is the only one I've done well with.
Well, I'd first play with bots against bots, and then with human players vs bots.
I guess that easy heroes to start with would be those, that don't have too much micro-management, are somewhat durable and don't require too much map awareness. Such as Ogre Magi, Slardar, Axe or Tiny.
All of the few games I won vs human teams was with Treant Protector. He's fun too, since he can heal up the towers of your team, protect anyone no matter where he/she is on the map, turn himself or others invisible and so on. But you don't get many kills.
Yesterday I played a few games with Wisp. That was a bit more complicated, since you had instead of the regular four skills a total of... seven or so? But it was fun, since you can teleport yourself and teammates around on the map.
But in general, I guess I like Morphling a lot (because he is versatile and hard to kill), Ogre Magi (because he is funn) and Clockwerk.